package com.by.services;

/**
 * @author LittleDesire
 * @description
 * @date 2022-03-21 周一 10:06
 * @since 17
 */

import lombok.Data;
import org.springframework.stereotype.Service;

//@Service
@Data
public class Util {
    private int i;
    public int pf() {
        return  this.i * this.i;
    }
}
